Yes, this is one of those "Isn't she amazing, she must be a genius" type posts. I will attempt to puncture my own bubble but probably in vain because this is one of those "She did that? Blimey!" actions.
We read an book of Twinkle Twinkle little star every night as her last book before going to bed. I sing it all gentle & quiet like, she turns the pages and pokes her fingers through the cutout stars in some of them. I often - not every time though - point to the words as I'm singing it.
T'other night she got hold of my finger as I was pointing and dragged it along the words HERSELF. She's less than a year old! It's ridiculous.
The fact that she hasn't done it again since is entirely immaterial, obviously.